Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2019GL085584 |
Orbital Identification of Hydrated Silica in Jezero Crater, Mars | |
Tarnas, J. D.1; Mustard, J. F.1; Lin, Honglei2; Goudge, T. A.3; Amador, E. S.4,5; Bramble, M. S.1; Kremer, C. H.1; Zhang, X.6; Itoh, Y.7; Parente, M.7 | |
2019-11-25 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2019 |
卷号 | 46期号:22页码:12771-12782 |
文章类型 | Article |
语种 | 英语 |
国家 | USA; Peoples R China |
英文摘要 | Silica has the highest demonstrated potential of any phase to preserve microfossils on Earth and therefore may host potential biosignatures on Mars. We detected hydrated silica in Jezero crater, the landing site of the National Aeronautics and Space Administration's Mars 2020 rover mission, by applying Dynamic Aperture Factor Analysis/Target Transformation to images from the Compact Reconnaissance Imaging Spectrometer for Mars. Hydrated silica detections with Dynamic Aperture Factor Analysis/Target Transformation were verified using commonly accepted Compact Reconnaissance Imaging Spectrometer for Mars analysis methods. The morphology of geologic units associated with silica was characterized with high-resolution imaging. Several hypotheses are presented for the formation environment of hydrated silica. All are testable via in situ investigation. We assess the likelihood of silica to preserve biosignatures in these different scenarios based on habitability considerations and biosignature preservation in Earth analog environments and materials. Also reported are possible detections of hydrated silica in the Nili Fossae basement and olivine-rich units, as well as Al-phyllosilicate within Jezero crater. |
英文关键词 | Mars Jezero silica biosignature |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000498355100001 |
WOS关键词 | SYRTIS MAJOR ; DEPOSITS ; MINERALS ; ANCIENT ; SYSTEM ; CHERT ; CRISM ; SILICIFICATION ; STRATIGRAPHY ; PRESERVATION |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/225086 |
专题 | 环境与发展全球科技态势 |
作者单位 | 1.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA; 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China; 3.Univ Texas Austin, Dept Geol Sci, Jackson Sch Geosci, Austin, TX USA; 4.NASA, Jet Prop Lab, Pasadena, CA USA; 5.CALTECH, Div Geol & Planetary Sci, Pasadena, CA 91125 USA; 6.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing, Peoples R China; 7.Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA |
推荐引用方式 GB/T 7714 | Tarnas, J. D.,Mustard, J. F.,Lin, Honglei,et al. Orbital Identification of Hydrated Silica in Jezero Crater, Mars[J]. GEOPHYSICAL RESEARCH LETTERS,2019,46(22):12771-12782. |
APA | Tarnas, J. D..,Mustard, J. F..,Lin, Honglei.,Goudge, T. A..,Amador, E. S..,...&Parente, M..(2019).Orbital Identification of Hydrated Silica in Jezero Crater, Mars.GEOPHYSICAL RESEARCH LETTERS,46(22),12771-12782. |
MLA | Tarnas, J. D.,et al."Orbital Identification of Hydrated Silica in Jezero Crater, Mars".GEOPHYSICAL RESEARCH LETTERS 46.22(2019):12771-12782. |
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